baber/WOPTO huggingface dataset:
Patent GB-751168-A (GB)
Title: Improvements in or relating to automatic platen printing presses
IPC: B41F1/40
Filed: 1954-05-20
Abstract: 751,168. Printing-machines. SCHNELL. PRESSENFABRIK AKT.-GES., HEIDELBERG. May 20, 1954 [April 1, 1954], No. 14897/54. Class 100 (2). [Also in Group XXIII] Inking-apparatus.-In an automatic platen printing press having a cylinder inking device with travelling rubber-coated or other formeinking rollers 7 mounted on ball-bearings in swinging cylinder supports 9, the ball-bearings are tight on the roller spindles and a device 23 is loosely or fixedly attached to the press for drawing them on and off. Roller exchange is thus facilitated while avoiding wear that would arise from ball-bearings loosely fitting the roller spindles. The device 23 (see Group XXIII) may comprise three brackets 24 ... 26, the first supporting a thumbscrew 28 while the second and third, used for drawing the bearings off and on respectively, engage the side of a guide roller 10, Fig. 4, and of the bearing 16. The rollers 10 run on rails 11 on the machine frame. The bearing shells 8, articulated to the sprung telescopic swinging supports 9, may have a recess 19 to fit the bearing 16, and a second recess 20 slightly bigger than a conical extension 18 of the roller spindle 15; should the bearing 16 fail, the extension 18 engages the recess 20 which serves as an emergency bearing. At one side of the press the recesses 19, 20 are normal bores, but at the other side they are open at the bottom as shown in Fig. 4, to facilitate roller removal; at this side the roller spindles are encircled by holes 32 in catch plates 29 on pivot pins 30, about which the plates may be swung clear of the spindles by their knobs 31 after retraction against springs 34.
Patent GB-354819-A (GB)
Title: Improved process for the sizing of textiles
IPC: D06M15/693
Filed: 1930-05-15
Abstract: Textile yarns are sized in a solution of rubber in benzine or carbon disulphide with or without the addition of alcohol or petroleum and the size is subsequently removed by scouring in a slightly alkaline or ammoniacal hot solution.  The Specification as open to inspection under Sect. 91 (3) (a) also refers to the treatment of fabrics. Rubber such as crepe, latex (natural, ammoniacal, alkaline, artificial or artificially emulsionated) or vulcanized rubber may be used.  An example is given for the treatment of artificial silk yarn. This subject-matter does not appear in the Specification as accepted.ALSO:Textile yarns are sized with a solution of rubber in benzine or carbon bisulphide with or without the addition of alcohol or petroleum and the size is subsequently removed by scouring in a slightly alkaline or ammoniacal hot liquid.  The Specification as open to inspection under Sect. 91 (3) (a) also refers to the treatment of fabrics and specifies artificial silk yarn.  Rubber such as crepe, latex (natural, ammoniacal, alkaline, artificial or artificially emulsionated), or vulcanized rubber may be used.  This subject-matter does not appear in the Specification as accepted.
Patent GB-597880-A (GB)
Title: Improvements in grading machine
Filed: 1944-08-22
Abstract: 597,880. Lineardimension gauges. NORTH AMERICAN HOLDING CORPORATION. Aug. 22, 1944, No. 14954. Convention date, Dec. 24, 1941. [Class 106 (ii)] [Also in Groups VIII and XXXVIII] Apparatus for indicating, grading or sorting according to the minimum thickness of an article comprises means for measuring the changes in thickness of the -article and translating them into variations of an electrical value, only the changes corresponding to decreases in thickness being transmitted to the grading device. Fig. 1 shows a leather blank S which is fed through a measuring device M to a grading and skiving device G. The blank passes through feeding rolls to two pairs of calipering rolls, one on each side of the blank, one of which is shown 2, 2a, the lower roll being fixed and the upper moving a spindle 105 up and down according to changes of thickness. The blank passes from the measuring device and is conveyed to the grading device where it passes between skiving rolls 4, 4a. The position of roll 4 has been adjusted by bar 63 and wedges 65, 66 moved by an electric motor 500 controlled through an electrical correspondence control system (see Group XXXVIII) from spindle 105 so that the blank is skived by a knife 5 to a uniform thickness corresponding to its thinnest portion. When the blank leaves the rolls, a link 305 descends to operate switch 621 to initiate the return of motor 500 to an initial position. An electrical instrument 480 indicates the minimum detected thickness of the blank. Specification 598,297 is referred to.
Patent GB-921733-A (GB)
Title: Improvements in the crimping of yarns based on thermoplastic polymers and new yarns obtained thereby
IPC: D02G1/16
Filed: 1961-04-25
Abstract: 921,733. Spinning and finishing yarns. SOC RHODIACETA. April 25, 1961 [April 27, 1960; Jan. 9, 1961], No. 14988/61. Class 120 (3). Crimped or looped yarn is produced by subjecting to the action of a turbulent or whirling current of fluid one or more multifilament yarns of thermoplastic polymer e.g. polyacrylonitrile, polyamide, polyester, polypropylene, to constitute a peripheral yarn, together with one or more yarns e.g. of cellulose acetate, nylon, polyethylene, polyvinyl alcohol, to constitute a core yarn, thereby forming a composite yarn with the peripheral yarn surrounding the core yarn and, after setting the peripheral yarn components of the composite yarn, removing the core yarn and leaving a crimped set yarn of the thermoplastic polymer. The fluid may be compressed air, in which case the composite yarn is subjected to heat setting before removal of the core yarn, or it may be a plasticizing fluid e.g. compressed steam, which sets the thermoplastic polymer yarn components simultaneously with the formation of the composite yarn. The rate of feed of the core yarn to the current is less than that of the peripheral yarn components and may be equal to or slightly higher than the wind-up speed of the composite yarn. The core may be removed by dissolving with a selective solvent, selective melting or stretch-breaking to form short fibres which can be separated e.g. electrostatically, or which are shed during subsequent textile treatments. The crimped yarn may be doubled and/or subjected to a further thermal treatment with or without tension to modify its stretch properties. French Specification 1,096,943 is referred to.
Patent GB-1221261-A (GB)
Title: Drill rod for soil drilling equipment
IPC: E21B19/084
Filed: 1969-03-21
Abstract: 1,221,261. Boring earth and rock. DELMAG VERWALTUNGS G.m.b.H. [trading as DELMAG-MASCHINENFABRIK REINHOLD DORNFELD]. 21 March, 1969 (22 March, 1968], No. 15019/69. Heading E1F. [Also in Division F2] A telescopically extendable drill rod assembly 20 for soil drilling comprises a drill rod 1 which is suspended by a rope 21 and swivel 5, a drill bit 3, a damper member 9 for supporting telescopic tubes such as 11, 12 in a collapsed condition, and a further damper member 7 on the rod 1 and engageable with a member 14 on the tube 11 when the assembly is extended. A damper member 17 on the tube 11 engages a member 15 on the tube 12 in the extended condition. The damper member 17 may alternatively be attached to the member 15. The assembly is driven by a rotary table 19 engaging lugs 13 on the tube 12. In an alternative embodiment (Fig. 4, not shown) the tubes are of square cross section.
Patent GB-351191-A (GB)
Title: Improvements relating to pumping systems
IPC: F04D9/00
Filed: 1930-05-15
Abstract: 351,191. Centrifugal pumps. CARTER, R. B., 53, Park Place, New York, U.S.A. May 15, 1930, No. 15033. Convention date, Dec. 27, 1929. [Class 110 (i).] A centrifugal pump is primed by water which flows into the pump from a tank on the discharge side, the flow being controlled by a valve operated by the pump discharge. The tank 16 is supported above the pump 10 ; it is connected to the pump discharge by the duct 15 and to the byepass 18 on the suction side by a port 20. The suction pipe 14 enters the byepass 18 and has a valve 21 placed at its upper end. A valve mechanism 23, 24 controls the flow through the byepass. To start the pump the tank 16 and the byepass 18 are filled with water the pressure of which holds the valve 21 closed. When the pump starts to rotate the liquid is forced up through the duct 15, raises the valve 23 and closes the valve 24. The suction opens the valve 21 and air from the pipe 14 is drawn into the pump. With the cessation of liquid flow in the duct 15, the valve 23 drops and the valve 24 opens so that the mechanism occupies the position shown in Fig. 2. Water will now flow from the tank 16 into the byepass 18 and air will rise into the tank. The action is repeated until the pump is working normally. The valves 23, 24 may be at opposite ends of a pivoted lever, or they may be connected by links.
Patent GB-457133-A (GB)
Title: Improvements in aluminium alloys and the production thereof
IPC: C22C21/12
Filed: 1935-05-23
Abstract: In the production of aluminium alloys containing 0,5-5 per cent of copper, 0,5-3 per cent of nickel, 0,1-2,5 per cent of magnesium, 0,2-2,5 per cent of silicon, 0,2-2 per cent of iron, and up to 1 per cent of cerium, 0,05-0,5 per cent of molybdenum is added as an auxiliary refining agent.  The molybdenum may be introduced as an aluminium-molybdenum alloy. Specification 403,700 is referred to.
Patent GB-788840-A (GB)
Title: Improvements in or relating to a buffer device for the pickers of a loom
Inventor: WEDER HERBERT
IPC: D03D49/36
Filed: 1956-05-16
Abstract: 788,840. Checking picking sticks. VEB WEBSTUHBAU NEUGERSDORF. May 16, 1956, No. 15191/56. Class 142(2) Picking stick buffers consist of a rubber ring 3 on the outer side of a flange 4 and softer rubber rings 5 on the inner side, the flanges 4 being coupled together by a rod 6 sliding in a friction brake 12, 13.
Patent GB-621725-A (GB)
Title: Improvements in or relating to induction heating apparatus
IPC: H05B6/36
Filed: 1943-09-17
Abstract: 621,725. Electric induction heating. INDUCTION HEATING CORPORATION. Sept. 17, 1943, No. 15298. Convention date, Dec. 26, 1942. [Class 39(iii)] Electric induction heating apparatus operated by a high frequency oscillator is employed with two heaters, supplied through transformers, the primaries of which are alternatively connected to the oscillator. The connections and coils include metal conduits for cooling fluid, and insulating conduits are provided whereby circulation of cooling fluid is maintained notwithstanding opening of the electrical circuit. The external circuit of the oscillator 20 includes transformer primaries 22, 23, alternatively connected by a switch 24, the coils and connections consisting of metal pipes. To maintain the flow of cooling water in both primaries, tubes 34, 35 of rubber or plastic insulating material sufficiently long to prevent current conduction by the contained water, are provided, so that each primary remains in the fluid circuit when not in the electrical circuit. The two transformers and switch are located behind an insulating panel on a work table, and the heating coils immediately in front in close proximity to the transformers. The blades of the switch 24 are arranged at such an angle that each primary coil remains in circuit until after the other coil is connected. The transformer secondaries 36, 37 are connected in series with the heating coils 14, 16. The coil 14 has a single turn consisting of a strip of metal with apertures 38 for objects to be heated, and a saw cut 39 to separate the two sides electrically. A cooling fluid conduit 40 is soldered around the periphery. An alternative arrangement is described whereby the cooling fluid constantly flows through both transformer primaries in series, while either primary alone may be switched into the electrical circuit. The Specification as open to inspection under Sect. 91 describes also the subjectmatter of Specification 621,776. This subject-matter does not appear in the Specification as accepted.
Patent GB-753776-A (GB)
Title: Improvements relating to ferro-magnetic ceramic bodies
IPC: H01F1/03
Filed: 1954-05-24
Abstract: 753,776. Magnetic structures. STEATITMAGNESIA AKT.-GES. May 24, 1954 [May 23, 1953], No. 15298/54. Class 38 (2). To make the hysteresis loop of a magnetic ferrite core more rectangular, the core is made in the shape of a ring which is not both circular and of uniform crosssection, stresses being produced in it during manufacture as a result of differences in density, rates of cooling and contraction in different parts of the core. The stress may be increased by quenching after sintering or after additional heat treatment. The core shapes may be such that the outer and inner traces where planes perpendicular to the axis are cut by core surfaces are concentric squares, Fig. 2, concentric rectangles, Fig. 3 (not shown), concentric circle and square, Fig. 4, concentric ellipse and rectangle,. Fig. 5 (not shown), concentric rectangle and square, Fig. 6 (not shown), eccentric rectangle and square, Fig. 7 (not shown), concentric or eccentric ellipse and circle, Figs. 8, 9 (not shown), or eccentric ellipses, Fig. 10.
Patent GB-353143-A (GB)
Title: Improvements in and relating to electric regulating systems and apparatus
IPC: H02P9/08
Filed: 1930-05-19
Abstract: 353,143. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Thompson, L. W. ; 53, Baker Avenue, Schenectady, New York, U.S.A.) May 19, 1930, No. 15333. Convention date, May 18, 1929. [Class 38 (iv).] A regulating arrangement of the type described in Specification 181,515, [Class 38 (iv), Electric supply and transmission systems &c.], comprises a plurality of parallel-connected resistances 10 in series with an exciter field winding 6 and an adjustable resistance 17, and a regulator short-circuiting and reinserting a portion only of each of the resistances 10 simultaneously, the short circuit including the adjustable resistance 17. To limit the duty imposed on the movable elements of the regulator a normally open circuit including a resistance 18 is connected around the resistances controlled by the regulator and switched in by a winding 19 when the field current is above a predetermined value. The exciting current of the dynamo may be quickly increased in abnormal load conditions by shortcircuiting all the field circuit resistances by means of a switch 22 controlled by auxiliary 46, 47 contacts on the regulator, excessive current in the exciting circuit being prevented by a further resistance 23 inserted by a switch responsive to the exciting current. The vibrating regulator 12 may be of the type described in Specification 296,402, [Class 38 (iv), Electric supply and transmission systems &c.].
Patent GB-684179-A (GB)
Title: Improvements relating to the manufacture of pads for sole presses as used in the manufacture of footwear
Inventor: MERCER FREDERICK GEORGE
IPC: A43D35/00
Filed: 1950-06-20
Abstract: 684,179. Pads for shoe sole presses. LOTUS, Ltd, June 20, 1951 [June 20, 1950], No. 15352/50. Drawings to Specification. Class 17 (i). [Also in Group VIII] A covering comprising one or more sheets of polythene in extruded form is bonded to a base of leather under heat and pressure for a predetermined time after which the composite sheet is allowed to cool, while still under pressure, and utilised to form the covering of a pad for a shoe sole press.
Patent GB-635723-A (GB)
Title: Improvements relating to central heating installations
IPC: A01G9/24
Filed: 1947-06-11
Abstract: 635,723. Heating buildings, systems for; hot water boilers. WITHNELL, J. F. June 11, 1947, No. 15397. [Classes 64(i) and 64(ii)] A space heating installation, e.g., for a greenhouse, comprises a boiler and one or more circulating systems, each consisting of at least two adjacent flow pipes of small cross-sectional area connected in parallel to a hot water outlet in the upper part of the boiler and leading to a common end pipe remote from the boiler and at least one return pipe leading from the end pipe to an inlet in the lower part of the boiler. Each water-circulating element consists of pipes opening at each end into headers and in the form shown, heated water from the boiler a flows along an element comprising two or more pipes n, of elliptical crosssection with circular ends, connected in parallel to the boiler through a header o, and terminating in a similar header r, the circular outlet of which is connected to a finned member s leading to one or more return pipes t, the return pipes normally being fewer in number than the flow pipes n.. The boiler may comprise a metal container having one or more outlet openings in its upper part and one or more inlet openings in its lower part and an electric heating element in its interior. Alternatively, the boiler may comprise a boxlike sheet-metal container having water inlet and outlet connections in its side and top faces respectively, and supported by a casing having a flue passage above a burner for oil, coke or other fuel.
Patent GB-556236-A (GB)
Title: Improvements in electric switch contacts
IPC: H01H1/04
Filed: 1942-11-02
Abstract: 556,236. Silver alloys. WILSON CO., H. A. Nov. 2, 1942, No. 15406. Convention date, Oct. 29, 1941. [Class 82 (i)] [Also in Group XXXVII] To aviod sticking of contacts a contact combination comprises a cathod of silver or silver alloyed with up to 30 per cent. platinum or palladium and a co-operating anode of silver alloyed with up to 10 per cent. of tin. The anode may be further alloyed with copper or cadmium. The Specification as open to inspection under Sect. 91 comprises also anode contacts of silver alloyed with copper up to 20 per cent., gold up to 30 per cent., and mercury up to 20 per cent. This subject-matter does not appear in the Specification as accepted.
Patent GB-826372-A (GB)
Title: Combined spring shock absorber suspension unit
IPC: B64C25/60
Filed: 1956-01-13
Abstract: 826,372. Liquid springs. TAYLOR, P. H. Jan. 13, 1956 [Jan. 13, 1955], No. 15451/58. Divided out of 826,370. Drawings to Specification. Class 108(3) The description is the same as that in Specification 826,371 but the claims differ.
Patent GB-141561-A (GB)
Title: Improvements in carving forks
IPC: A47G21/02
Filed: 1919-06-19
Abstract: 141,561. Lawrence, J. June 19, 1919. Carving-forks.-A carving-fork is constructed with a fixed or integral guard b formed by the communicating arm of a cranked bend, of which the pronged end a and body c are the other members. The bend forms acute angles with the pronged end and body. A thumb-depression d may be provided in the body c.
Patent GB-1066543-A (GB)
Title: Polyester fibres resistant to resoiling during laundering
IPC: C08L67/02
Filed: 1964-04-15
Abstract: At least 0.25% of a linear polyether is dispersed throu ghout a linear aromatic polyester fibre.  The molecular weight of the polyether may be above 2000.  Polyethers specified are polyethylene glycol, polypropylene glycol, and fatty acid esters thereof, copolymers of ethylene and propylene glycol and monophenyl ethers of polyethylene glycol.  Polyesters specified are poly-(ethylene terephthalate) and poly-(1,4-dimethylene cyclohexane terephthalate). The polymers are mixed prior to fibre formation by one of the following methods: (a) dry mixing; (b) treating the polyester with a solution of the polyether in a liquid which does not dissolve the former, allowing excess solution to drain off, evaporating the remaining solvent and drying the polyester by subjection to heat and/or reduced pressure; (c) spraying a liquid polyether on to rods, pellets or powder of the polyester; (d) mixing 5-30% of the polyether with a low molecular weight polyester and mixing the composition so formed with a high molecular weight polyester or (e) mixing on hot rollers.  Solvents specified for (b) are: water, methanol, ethanol, propanols, acetone, methyl ethyl ketone, ethyl acetate, methyl acetate, CH2Cl2, C2H4Cl2, benzene, toluene an hexene. The mixture may contain up to 5% of the polyether.
Patent GB-129343-A (GB)
Title: Improvements in Fuel Supply Apparatus for Internal Combustion Engines.
Inventor: KING CHARLES FREDERICK LAWRENC
IPC: F02M37/02
Filed: 1917-10-26
Abstract: 129,343. King, C. F. L. Oct. 26, 1917. Vacuum apparatus.-Relates to the air and suction control valves employed in liquid-fuel supply apparatus wherein fuel is raised by suction from a main to an auxiliary tank, whence it flows by gravity to the carburettor, the suction and air valves being actuated by a float, the suction valve being retained on its seat during the emptying of the receptacle solely by atmospheric pressure, but is positively opened by the descent of the float. Fuel entering the auxiliary receptacle 1 at 2, raises the float 27 and, sliding on the rod 26, ultimately reaches the stop 28, raises the lever 24, closes the suction valve 12 and opens the air valve 19. The fuel in the tank 1 is then discharged past a flap valve 7, with upstanding part 8, into the outer vessel 4 which feeds the carburettor. The suction valve comprises a collar 12 of larger diameter than, and a reduced part 13 of approximately the same diameter as, the suction aperture 10; the part 13 is then reduced to a spindle 15 carrying a spherical grooved guide head 16 which permits the passage of air when suction is exerted. The air valve 19 is cylindrical with a conical seat, and keeps the passage 11 closed until it leaves the pocket 21. The stems 18, 20 of the valves are connected to the lever 24 by ball and socket joints. Atmospheric pressure is maintained in the outer vessel 1 through a passage 6. The rod 26 has a lower stop pin 29, and is guided by a cage 30 with apertures 31 for the passage of fuel. The collar 12 on the suction valve ensures that the valve is held to its seat by suction during discharge of the fuel and until it is opened positively by the float striking the stop pin 29. In modifications, (1) the float is fixed to the rod 26 which is connected through a lost motion device with the lever 24; (2) the suction aperture 10 may be in a chamber screwed into the cover 9. The air control valve may be dispensed with.
Patent GB-891173-A (GB)
Title: Method for the production of 6-amino-penicillanic acid
Inventor: GODTFREDSEN WAGN OLE
IPC: A61K31/43
Filed: 1959-05-06
Abstract: 6-Amino-penicillanic acid is produced by adding a penicillin, or a mixture of penicillins, produced by a fermentation process, to a culture medium in which a mould is grown which produces de-acylating enzymes capable of deacylating penicillins, whereafter the mould is grown in the culture medium in the presence of the penicillin until a substantial part of the penicillin has been converted into 6-amino-penicillanic acid. The Specification lists as suitable moulds species from the genera Mucor, Monotospora, Stemphylium, Cylindrocarpon, Cephalosporium, Aspergillus, Fusarium, Hypomyces and Gibberella.  Examples describe the production of 6-amino-penicillanic acid from benzyl-penicillin and phenoxymethyl-penicillin; the product may be purified and concentrated by adsorption and subsequent elution, the operation being optionally preceded or followed by a concentration by evaporation in vacuo.  Before recovering the 6-amino-penicillanic acid, the bulk of the remaining penicillin may be removed by acidifying and extraction with an organic solvent. Specifications 643,514, 870,395 and 870,396 are referred to.